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package main

import (
	"bytes"
	"io"
	"net/http"
)

type HTTPClient struct {
	r *http.Request
}

func NewHTTPClient(method string, uri string, content []byte) (*HTTPClient, error) {
	r, err := http.NewRequest(method, uri, bytes.NewBuffer(content))
	if err != nil {
		return nil, err
	}
	r.Header.Add("User-Agent", "tap"+Version)
	return &HTTPClient{r: r}, nil
}

func (r *HTTPClient) DoSignedDigest(host string, date string, signature string, digest string) ([]byte, error) {
	r.r.Header.Add("Digest", digest)
	return r.DoSigned(host, date, signature)
}

func (r *HTTPClient) DoSigned(host string, date string, signature string) ([]byte, error) {
	r.r.Header.Add("Host", host)
	r.r.Header.Add("Date", date)
	r.r.Header.Add("Signature", signature)
	return r.DoClear()
}

func (r *HTTPClient) DoClear() ([]byte, error) {
	r.r.Header.Add("Content-Type", "application/activity+json")
	r.r.Header.Add("Accept", "application/activity+json")
	client := &http.Client{}
	response, err := client.Do(r.r)
	if err != nil {
		return nil, err
	}
	defer response.Body.Close()
	return io.ReadAll(response.Body)
}